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Retrieved 28
October 2015. Bandaranayake,
Wickramasinghe M.; Selliah,
Sathiaderan S.; Sultanbawa, M.Uvais S.; Games, D.E. (1975). "Xanthones and 4-phenylcoumarins...
- Sri Lanka:
Plants Details". Bandaranayake,
Wickramasinghe M.; Selliah,
Sathiaderan S.; Sultanbawa, M.Uvais S.; Games, D.E. (1975). "Xanthones and 4-phenylcoumarins...